<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Feed_Reader
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Entry.php 18951 2009-11-12 16:26:19Z alexander $
 */

/**
 * @see Zend_Feed_Reader
 */
require_once 'Zend/Feed/Reader.php';

/**
 * @see Zend_Feed_Reader_Extension_EntryAbstract
 */
require_once 'Zend/Feed/Reader/Extension/EntryAbstract.php';

/**
 * @category   Zend
 * @package    Zend_Feed_Reader
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Feed_Reader_Extension_Slash_Entry
extends Zend_Feed_Reader_Extension_EntryAbstract
{
	/**
	 * Get the entry section
	 *
	 * @return string|null
	 */
	public function getSection()
	{
		return $this->_getData('section');
	}

	/**
	 * Get the entry department
	 *
	 * @return string|null
	 */
	public function getDepartment()
	{
		return $this->_getData('department');
	}

	/**
	 * Get the entry hit_parade
	 *
	 * @return array
	 */
	public function getHitParade()
	{
		$name = 'hit_parade';

		if (isset($this->_data[$name])) {
			return $this->_data[$name];
		}

		$stringParade = $this->_getData($name);
		$hitParade    = array();

		if (!empty($stringParade)) {
			$stringParade = explode(',', $stringParade);

			foreach ($stringParade as $hit)
			$hitParade[] = $hit + 0; //cast to integer
		}

		$this->_data[$name] = $hitParade;
		return $hitParade;
	}

	/**
	 * Get the entry comments
	 *
	 * @return int
	 */
	public function getCommentCount()
	{
		$name = 'comments';

		if (isset($this->_data[$name])) {
			return $this->_data[$name];
		}

		$comments = $this->_getData($name, 'string');

		if (!$comments) {
			$this->_data[$name] = null;
			return $this->_data[$name];
		}

		return $comments;
	}

	/**
	 * Get the entry data specified by name
	 * @param string $name
	 * @param string $type
	 *
	 * @return mixed|null
	 */
	protected function _getData($name, $type = 'string')
	{
		if (array_key_exists($name, $this->_data)) {
			return $this->_data[$name];
		}

		$data = $this->_xpath->evaluate($type . '(' . $this->getXpathPrefix() . '/slash10:' . $name . ')');

		if (!$data) {
			$data = null;
		}

		$this->_data[$name] = $data;

		return $data;
	}

	/**
	 * Register Slash namespaces
	 *
	 * @return void
	 */
	protected function _registerNamespaces()
	{
		$this->_xpath->registerNamespace('slash10', 'http://purl.org/rss/1.0/modules/slash/');
	}
}
